312456404503 has 2 divisors, whose sum is σ = 312456404504. Its totient is φ = 312456404502.

The previous prime is 312456404453. The next prime is 312456404509. The reversal of 312456404503 is 305404654213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 312456404503 - 2¹⁷ = 312456273431 is a prime.

It is a super-3 number, since 3×312456404503³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312456404509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156228202251 + 156228202252.

It is an arithmetic number, because the mean of its divisors is an integer number (156228202252).

Almost surely, 2^312456404503 is an apocalyptic number.

312456404503 is a deficient number, since it is larger than the sum of its proper divisors (1).

312456404503 is an equidigital number, since it uses as much as digits as its factorization.

312456404503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 172800, while the sum is 37.

The spelling of 312456404503 in words is "three hundred twelve billion, four hundred fifty-six million, four hundred four thousand, five hundred three".